Sebble

Hi, I have an NW-HD1 and I recently moved the contents of it onto my computer and back again, but I seem to have invalidated something by doing this as now the music will no longer play on the device. The content on the device is 'exactly' the same as before, at least as far as I can tell. I thought this would back it up but unfortunately not and now nothing works (either 'cannot play' or 'cannot play on this device'). Thanks, Seb